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Reviews & Ratings for Daniel Defense M4A1 Rail Interface System RIS II — 8 reviews

(8 reviews)
Daniel Defense M4A1 Rail Interface System RIS II
Daniel Defense M4A1 Rail Interface System RIS II
$538.00 $501.00 Save $37.00
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Most Helpful Positive Review Solid Rail
The Daniel Defense RIS II is an absolutely solid rail for your AR. Once it’s on, it’s on and not moving around. Yes it’s heavier than your current m-lok rail but still nothing beats a solid quad rail in terms of rigidity.
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RIS II RAIL

by LarkMaines, Verified Owner from CA, United States Written on April 10, 2025
Love it. Haven’t built a quad railed AR in a while. What can I say about it…. It’s Daniel Defense
Would recommend: Yes
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Great heavy duty rail system for socom barrel.

by C.mar., Verified Owner from CA, United States Written on July 2, 2024
For does wanting to build an m4a1 style rifle, this is a must. Fit perfectly with heavy barrel and mk12 gas block. Installation is not hard.
Pros:
  • Heavy duty, well constructed
Cons:
  • cost
Would recommend: Yes
Was it helpful to you? Yes | No
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Bomb Proof

by C88, Verified Owner from TX, United States Written on March 13, 2024
If you are looking at this rail, chances are you already know of its reputation. It's a rock solid rail that lives up to the hype. It's an older design obviously and it's larger and heavier than mlok rails, but it has ZERO flex and is built like a tank. If picatinny is your thing you will not be disappointed in this rail.
Pros:
  • solid
Cons:
  • Heavy
Best Used for:
  • Literally anything
Would recommend: Yes
Was it helpful to you? Yes | No
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ris 2 rail

by Matt Mcquate, from KY, United States Written on March 9, 2024
I love my ris 2 rail. It looks great has great lock up and was lighter than I expected. My only problems were that the barrel nut wrench barely fit onto the barrel nut so when installing that I was stripping out the barrel nut lugs a little and the screws that hold the two rail sections together can strip kind of easy.
Would recommend: Yes
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DDM4A1 rail

by INDY K, from IN, United States Written on December 23, 2023
Great product pretty easy to install. Be careful nubs if your still wearing the M4 front sight block this has to be removed. Plan ahead for removing your front sight block and og barrel nut. The rail is solid, I mean it’s a Daniel Defense.. But I certainly prefer the MidWest T rail over this. Considering whats out there now for quad rails some are much more complexed T7071’s that fetch a far less price. Other than wanting to keep My 6920 time period consistent. I much prefer the Midwest T rail overall. Again I bought this for a Colt to keep consistent for a time period build.
Pros:
  • Solid, perfect for M4 Afghan clone, American made
Cons:
  • cost
Best Used for:
  • Launchers, clones, field use
Would recommend: No
Was it helpful to you? Yes | No
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DD M4A1 ris ii handguard

by Whitefeather, Verified Owner from TX, United States Written on December 5, 2023
I bought the hangard to build my M4A1 clone. Top-notch by Daniel defense. Overall price is crazy but you get what you pay for.
Pros:
  • Well built, strong, great mounting setup
Cons:
  • Expensive and heavy
Would recommend: Yes
Was it helpful to you? Yes | No
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Daniel Defense M4A1 Rail Interface System

by Legacy Reviewer, from WA, United States Written on September 22, 2013
the very BEST rail system on the market! you can never go wrong with Daniel Defense. you may pay a bit more, but you will be very satisfied with it. best of all, I got it installed under 30 minutes. installation was very easy.
Pros: Very Easy to install.
Cons: None that i can see.
Would recommend: Yes
1 of 1 found the following review helpful.
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